Circuit breaker repair: what to know

What the job involves, what changes the price, and what to ask a pro.

What circuit breaker repair is

Circuit breaker repair deals with a breaker that trips over and over, will not reset, or feels hot. The electrician finds out whether the breaker is failing or the circuit is overloaded or shorted, then replaces the breaker or traces the fault back to the device, cable or connection causing it. Call when a breaker trips more than once, feels warm, or will not hold a reset.

Signs you need it

  • A breaker trips again within minutes of being reset
  • A breaker is warm or hot to the touch, or the panel smells of heat
  • A breaker will not reset at all, or it resets and then goes straight back off
  • A breaker trips only when a specific appliance, outlet or room is in use
  • A breaker sits between on and off, or feels loose in its slot
  • Lights on the circuit flicker or go dim before the breaker opens

What the pro does

  • Check the breaker for heat, scorching, and a loose fit on the bus, with power off where the panel allows
  • Measure the circuit under load to see whether the breaker is opening at its rated current
  • Test for a short, a ground fault or an open neutral on the circuit, using the correct test instruments
  • Trace the circuit from the panel to the devices to find the overloaded or damaged run
  • Replace the breaker with a matching type and rating, or repair the wire or device that caused the fault
  • Retest the circuit under the same load, and confirm the breaker holds with no heat at its terminals

What changes the price

Every job is different, so we do not publish prices. These are the things that move the quote up or down.

  • Whether the breaker itself is the fault or the circuit is overloaded or shorted
  • Breaker type needed, such as standard, GFCI or AFCI, and whether it is listed for the panel
  • Access to the panel and to the devices on the circuit
  • Whether the trace leads into a finished wall, ceiling or underground run
  • Whether the panel has other heat damage or double-tapped breakers that also need work
  • Whether a different breaker size or a new circuit is needed to match the load

What a written quote should spell out

  • The breaker that was replaced, with its amperage, type and manufacturer
  • The fault found on the circuit, and the test that showed it
  • Any wire, device or connection repaired, and where it is located
  • Whether the trace was limited to the panel or ran to the devices
  • The retest performed and the load used during the test

Questions to ask before you hire

  • Will you test whether the breaker itself is failing or the circuit is overloaded?
  • Which breaker type and manufacturer will you use, and is it listed for my panel?
  • If you find heat at the panel, what is the plan?
  • Will you look for a short or ground fault on the circuit, not just swap the breaker?
  • How do you test a breaker under load before you say it is fixed?
  • Will you tell me the rating of the wire on this circuit, and whether it matches the breaker?

Red flags

  • Replaces the breaker without measuring the circuit or looking for the cause
  • Recommends a larger breaker to stop the trips, which can let the wire overheat
  • Uses a breaker from a different brand or series than the panel is listed for
  • Says the circuit is fine without testing it under load
  • Leaves the panel open or the breaker loose in its slot after the visit

What you can do yourself

Reading the breaker labels and noting which circuit trips and what is running at the time is safe. Resetting a breaker that tripped once, with no heat, smell or sparks, is also safe. Replacing a breaker, opening the panel, or tracing a circuit needs the power off at the service and a licensed electrician. A breaker that trips twice, feels hot or will not reset should be left alone until a pro checks it.

Licenses and permits

Breaker repair is commonly done by licensed electrical contractors, and replacing a breaker in a panel is often treated as electrical work that needs a license. Check with your state or local licensing agency or building department to confirm what your repair requires.

Circuit breaker repair questions

Is a breaker that trips often just worn out?

Not always. A breaker can fail, but frequent trips also come from an overloaded circuit, a short, a ground fault or a loose connection. The electrician should show which one it is before replacing the breaker.

Can I put a bigger breaker in to stop the trips?

No. The breaker protects the wire. A larger breaker lets the wire carry more current than it is rated for and can overheat it inside the wall. Find and fix the cause instead.

Why does a breaker feel warm when it is not tripped?

Warmth at a breaker can come from a loose connection on the bus or at the wire terminal, or from a load that is near the breaker's rating. Heat is a warning sign. Have it checked before the next trip.

About this guide

This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.

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